Planning and Research Division (April 2010). "[Arkansas] State Highways 2009" (Database). Arkansas State Highway and Transportation Department. Archived from the original(ZIP) on July 7, 2011. Retrieved June 3, 2011.
Planning and Research Division (April 2010). "[Arkansas] State Highways 2009" (Database). Arkansas State Highway and Transportation Department. Archived from the original(ZIP) on July 7, 2011. Retrieved June 3, 2011.